Home / 3,722.12-5,136.16-2,150.12

Finding the Fourth Proportional to 3,722.12, 5,136.16 and 2,150.12

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Solution

The fourth proportional to 3,722.12, 5,136.16 and 2,150.12 is: 2,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.12 : 5,136.16 = 2,150.12 : x
  2. Step 2: Convert to fraction form
    3,722.12/5,136.16 = 2,150.12/x
  3. Step 3: Cross multiply
    3,722.12x = 5,136.16 × 2,150.12
  4. Step 4: Simplify right side
    3,722.12x = 11,043,360.34
  5. Step 5: Solve for x
    x = 11,043,360.34/3,722.12
  6. Step 6: Final answer
    x = 2,966.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.